Mathematics - Term 2 - Week 10

Place value refers to the value of a digit based on its position in a number. In a two-digit number, the first digit represents the 'tens' place, while the second digit represents the 'ones' place. For example, in the number 34, the '3' is in the tens place and represents 30, while the '4' is in the ones place and represents 4. Understanding place value helps us read, write, and compare numbers effectively.

Let's look at the number 56. The digit '5' is in the tens place, which means it represents 50. The digit '6' is in the ones place, representing 6. Therefore, we can say that 56 is made up of 50 (from the '5') and 6 (from the '6'). To visualize this, we can use base ten blocks: 5 ten blocks and 6 unit blocks together make 56.

Now, let's practice together. I will write a number on the board: 72. Can anyone tell me what the value of the digit '7' is? (Wait for responses.) That's right! The '7' is in the tens place, so it represents 70. What about the '2'? Yes, it represents 2. Let's try another number: 45. What are the values of the digits here? (Encourage students to respond and discuss.)

Now it's your turn! I want you to solve the following problems on your own. Write the numbers and identify the value of each digit. For example, for the number 83, write down what the '8' and '3' represent. After that, solve the problems in your workbook where you will need to compare numbers based on their place values.

• 4
• 40
• 400
• 14

Answer: 40

The '4' is in the tens place, so it represents 40.

• 2
• 20
• 200
• 12

Answer: 20

The '2' is in the tens place, which means it represents 20.

Answer: 50

The '5' is in the tens place, so it represents 50.

• 23
• 32
• 13
• 30

Answer: 32

In the number 32, the '3' is in the tens place.

Answer: 60

The '6' is in the tens place, so it represents 60.

• 7
• 70
• 700
• 17

Answer: 70

The '7' is in the tens place, which means it represents 70.

Answer: 90

The '1' is in the tens place, so it represents 90.

• 45
• 54
• 15
• 25

Answer: 15

In the number 15, the '5' is in the ones place.